Consolidated Statement of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Comprehensive income (loss):
Net income (loss)	$ 127	$ 192	$ 323	$ 422
Other comprehensive income (loss):
Foreign currency translation adjustments, net of taxes	37	(30)	(7)	(51)
Pension and other postretirement benefits:
Amortization of prior service cost (credit) included in net periodic benefit cost, net of taxes	(1)	0	(2)	(1)
Amortization of actuarial (gain) loss included in net periodic benefit cost, net of taxes	6	10	12	20
Other comprehensive income (loss)	42	(20)	3	(32)
Comprehensive income (loss)	169	172	326	390
Less: Comprehensive income (loss) attributable to noncontrolling interest	37	50	93	119
Comprehensive Income (loss) attributable to The Williams Companies, Inc.	$ 132	$ 122	$ 233	$ 271